
■ Tap for steel conduit threads. Thread angle is 80 degree and the thread symbol is CTC.
Low carbon steels Medium carbon steels High carbon steels
| 低炭素鋼10 | 中炭素鋼10 | 高炭素鋼10 |
| (m/min) | (m/min) | ( m/ min) |
TYPE:1
Segment:1A
| Size | Code | Chamfer | Basic major dia (mm) | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No. of flutes | TYPE | MSRP |
| Fo | r Steel | Condu | it Threa | ds | |||||||||
| CTC19-16 | TYCC190HEB5 | 5P | 19.100 | 105 | 23 | - | 50 | 15 | 12 | 15 | 4 | 1 | ¥ 14,500 □ |
| CTC25-16 | TYCC250HEB5 | 5P | 25.400 | 125 | 24 | - | 58 | 19 | 15 | 18 | 4 | 1 | ¥ 31,700 □ |
| CTC31-16 | TYCC310HEB5 | 5P | 31.800 | 145 | 26 | - | 67 | 24 | 19 | 22 | 4 | 1 | ¥ 45,800 □ |
| CTC39-16 | TYCC390HEB5 | 5P | 38.100 | 165 | 27 | - | 76 | 30 | 23 | 26 | 4 | 1 | ¥ 61,100 □ |
| ■For Steel | Conduit Thr | eads unit: mm |
| Size | Pitch Diameter Basic Size | Minor Diameter Basic Size |
| CTC 19 - 16 | 18.343 | 17.708 |
| CTC 25 - 16 | 24.643 | 24.008 |
| CTC 31 - 16 | 31.043 | 30.408 |
| CTC 39 - 16 | 37.343 | 36.708 |
| ore | o | e sze | unit: mm | |
| Size | Minor Diameter of I Max. | nternal Thread(D1 Min. | )Bored Hole Size (Reference) | |
| CTC 19 - | 16 | 18.208 | 17.808 | 18.11 |
| CTC 25 - | 16 | 24.508 | 24.108 | 24.41 |
| CTC 31 - | 16 | 30.908 | 30.508 | 30.81 |
| CTC 39 - | 16 | 37.208 | 36.808 | 37.11 |